Also, it can be impractical to coat these surfaces with radar-absorbent materials.
Then came new paint and radar-absorbent materials and the flying-wing shape-that's second-generation.
Ady Gil, operated by the Sea Shepherd Conservation Society, was painted with what the owners claimed to be radar-absorbent material.
Painted in black radar-absorbent material, the craft looked sinister and unearthly, like a giant air-breathing manta ray.
According to Mikoyan, extensive use of radar-absorbent materials reduce the MiG-29K's radar signature 4-5 times over the basic MiG-29.
Some of the F-35's radar-absorbent materials are baked into the jet's composite skin, which means its stealthy signature is not easily degraded.
Additional reduction in its radar signature was achieved by the use of various radar-absorbent materials (RAM) to absorb and neutralize radar beams.
There is interest in blackbody-like materials for camouflage and radar-absorbent materials for radar invisibility.
Then designers used radar-absorbent materials to the maximum extent practicable.
The superstructures are built using radar-absorbent synthetic materials.